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clang-p2996/llvm/test/Transforms/Attributor/callbacks.ll
Sergey Dmitriev cb8faaacb5 [CallGraph] Add support for callback call sites 
Summary:
This patch changes call graph analysis to recognize callback call sites
and add an artificial 'reference' call record from the broker function
caller to the callback function in the call graph. A presence of such
reference enforces bottom-up traversal order for callback functions in
CG SCC pass manager because callback function logically becomes a callee
of the broker function caller.

Reviewers: jdoerfert, hfinkel, sstefan1, baziotis

Reviewed By: jdoerfert

Subscribers: hiraditya, kuter, sstefan1, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D82572
2020-07-01 13:44:11 -07:00

418 lines
30 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
; RUN: opt -attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
; RUN: opt -attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
; Test 0
;
; Make sure we propagate information from the caller to the callback callee but
; only for arguments that are mapped through the callback metadata. Here, the
; first two arguments of the call and the callback callee do not correspond to
; each other but argument 3-5 of the transitive call site in the caller match
; arguments 2-4 of the callback callee. Here we should see information and value
; transfer in both directions.
define void @t0_caller(i32* %a) {
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@t0_caller
; IS__TUNIT_OPM-SAME: (i32* align 256 [[A:%.*]])
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture align 536870912 null, i32* nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_OPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t0_caller
; IS__TUNIT_NPM-SAME: (i32* align 256 [[A:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture align 536870912 null, i32* nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t0_caller
; IS__CGSCC_OPM-SAME: (i32* align 256 [[A:%.*]])
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture align 536870912 null, i32* nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 99, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_OPM-NEXT: ret void
;
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t0_caller
; IS__CGSCC_NPM-SAME: (i32* align 256 [[A:%.*]])
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture align 536870912 null, i32* nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 99, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry:
%b = alloca i32, align 32
%c = alloca i32*, align 64
%ptr = alloca i32, align 128
%0 = bitcast i32* %b to i8*
store i32 42, i32* %b, align 4
store i32* %b, i32** %c, align 8
call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
ret void
}
; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
define internal void @t0_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
;
; NOT_TUNIT_NPM-LABEL: define {{[^@]+}}@t0_callback_callee
; NOT_TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; NOT_TUNIT_NPM-NEXT: entry:
; NOT_TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; NOT_TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; NOT_TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; NOT_TUNIT_NPM-NEXT: tail call void @t0_check(i32* align 256 [[A]], i64 99, i32* [[TMP0]])
; NOT_TUNIT_NPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t0_callback_callee
; IS__TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; IS__TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: tail call void @t0_check(i32* align 256 [[A]], i64 99, i32* [[TMP0]])
; IS__TUNIT_NPM-NEXT: ret void
;
entry:
%ptr_val = load i32, i32* %ptr, align 8
store i32 %ptr_val, i32* %is_not_null
%0 = load i32*, i32** %c, align 8
tail call void @t0_check(i32* %a, i64 %b, i32* %0)
ret void
}
declare void @t0_check(i32* align 256, i64, i32*)
declare !callback !0 void @t0_callback_broker(i32*, i32*, void (i32*, i32*, ...)*, ...)
; Test 1
;
; Similar to test 0 but with some additional annotations (noalias/nocapute) to make sure
; we deduce and propagate noalias and others properly.
define void @t1_caller(i32* noalias %a) {
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@t1_caller
; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_OPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t1_caller
; IS__TUNIT_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t1_caller
; IS__CGSCC_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 99, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_OPM-NEXT: ret void
;
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t1_caller
; IS__CGSCC_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 99, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry:
%b = alloca i32, align 32
%c = alloca i32*, align 64
%ptr = alloca i32, align 128
%0 = bitcast i32* %b to i8*
store i32 42, i32* %b, align 4
store i32* %b, i32** %c, align 8
call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
ret void
}
; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
define internal void @t1_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
;
; NOT_TUNIT_NPM-LABEL: define {{[^@]+}}@t1_callback_callee
; NOT_TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; NOT_TUNIT_NPM-NEXT: entry:
; NOT_TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; NOT_TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; NOT_TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; NOT_TUNIT_NPM-NEXT: tail call void @t1_check(i32* nocapture align 256 [[A]], i64 99, i32* nocapture [[TMP0]])
; NOT_TUNIT_NPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t1_callback_callee
; IS__TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* noalias nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; IS__TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: tail call void @t1_check(i32* nocapture align 256 [[A]], i64 99, i32* nocapture [[TMP0]])
; IS__TUNIT_NPM-NEXT: ret void
;
entry:
%ptr_val = load i32, i32* %ptr, align 8
store i32 %ptr_val, i32* %is_not_null
%0 = load i32*, i32** %c, align 8
tail call void @t1_check(i32* %a, i64 %b, i32* %0)
ret void
}
declare void @t1_check(i32* nocapture align 256, i64, i32* nocapture) nosync
declare !callback !0 void @t1_callback_broker(i32* nocapture , i32* nocapture , void (i32*, i32*, ...)* nocapture, ...)
; Test 2
;
; Similar to test 1 but checking that the noalias is only placed if potential synchronization through @t2_check is preserved.
define void @t2_caller(i32* noalias %a) {
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@t2_caller
; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_OPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t2_caller
; IS__TUNIT_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t2_caller
; IS__CGSCC_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 99, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_OPM-NEXT: ret void
;
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t2_caller
; IS__CGSCC_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 99, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry:
%b = alloca i32, align 32
%c = alloca i32*, align 64
%ptr = alloca i32, align 128
%0 = bitcast i32* %b to i8*
store i32 42, i32* %b, align 4
store i32* %b, i32** %c, align 8
call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
ret void
}
; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
;
; FIXME: We should derive noalias for %a and add a "fake use" of %a in all potentially synchronizing calls.
define internal void @t2_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
;
; NOT_TUNIT_NPM-LABEL: define {{[^@]+}}@t2_callback_callee
; NOT_TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; NOT_TUNIT_NPM-NEXT: entry:
; NOT_TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; NOT_TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; NOT_TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; NOT_TUNIT_NPM-NEXT: tail call void @t2_check(i32* nocapture align 256 [[A]], i64 99, i32* nocapture [[TMP0]])
; NOT_TUNIT_NPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t2_callback_callee
; IS__TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; IS__TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: tail call void @t2_check(i32* nocapture align 256 [[A]], i64 99, i32* nocapture [[TMP0]])
; IS__TUNIT_NPM-NEXT: ret void
;
entry:
%ptr_val = load i32, i32* %ptr, align 8
store i32 %ptr_val, i32* %is_not_null
%0 = load i32*, i32** %c, align 8
tail call void @t2_check(i32* %a, i64 %b, i32* %0)
ret void
}
declare void @t2_check(i32* nocapture align 256, i64, i32* nocapture)
declare !callback !0 void @t2_callback_broker(i32* nocapture , i32* nocapture , void (i32*, i32*, ...)* nocapture, ...)
; Test 3
;
; Basically test 2 with the casted callback callee used twice.
define void @t3_caller(i32* noalias %a) {
; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@t3_caller
; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__TUNIT_OPM-NEXT: entry:
; IS__TUNIT_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_OPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t3_caller
; IS__TUNIT_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__TUNIT_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__TUNIT_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__TUNIT_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__TUNIT_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture nonnull bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 undef, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__TUNIT_NPM-NEXT: ret void
;
; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t3_caller
; IS__CGSCC_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__CGSCC_OPM-NEXT: entry:
; IS__CGSCC_OPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_OPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_OPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_OPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_OPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_OPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 99, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_OPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 99, i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_OPM-NEXT: ret void
;
; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t3_caller
; IS__CGSCC_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]])
; IS__CGSCC_NPM-NEXT: entry:
; IS__CGSCC_NPM-NEXT: [[B:%.*]] = alloca i32, align 32
; IS__CGSCC_NPM-NEXT: [[C:%.*]] = alloca i32*, align 64
; IS__CGSCC_NPM-NEXT: [[PTR:%.*]] = alloca i32, align 128
; IS__CGSCC_NPM-NEXT: [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
; IS__CGSCC_NPM-NEXT: store i32 42, i32* [[B]], align 32
; IS__CGSCC_NPM-NEXT: store i32* [[B]], i32** [[C]], align 64
; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 99, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture align 536870912 null, i32* noalias nocapture nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* noalias nocapture align 256 [[A]], i64 99, i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C]])
; IS__CGSCC_NPM-NEXT: ret void
;
entry:
%b = alloca i32, align 32
%c = alloca i32*, align 64
%ptr = alloca i32, align 128
%0 = bitcast i32* %b to i8*
store i32 42, i32* %b, align 4
store i32* %b, i32** %c, align 8
call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
ret void
}
; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
;
; FIXME: We should derive noalias for %a and add a "fake use" of %a in all potentially synchronizing calls.
define internal void @t3_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
;
; NOT_TUNIT_NPM-LABEL: define {{[^@]+}}@t3_callback_callee
; NOT_TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; NOT_TUNIT_NPM-NEXT: entry:
; NOT_TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; NOT_TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; NOT_TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; NOT_TUNIT_NPM-NEXT: tail call void @t3_check(i32* nocapture align 256 [[A]], i64 99, i32* nocapture [[TMP0]])
; NOT_TUNIT_NPM-NEXT: ret void
;
; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t3_callback_callee
; IS__TUNIT_NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture nonnull readonly align 64 dereferenceable(8) [[C:%.*]])
; IS__TUNIT_NPM-NEXT: entry:
; IS__TUNIT_NPM-NEXT: [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
; IS__TUNIT_NPM-NEXT: store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
; IS__TUNIT_NPM-NEXT: [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
; IS__TUNIT_NPM-NEXT: tail call void @t3_check(i32* nocapture align 256 [[A]], i64 99, i32* nocapture [[TMP0]])
; IS__TUNIT_NPM-NEXT: ret void
;
entry:
%ptr_val = load i32, i32* %ptr, align 8
store i32 %ptr_val, i32* %is_not_null
%0 = load i32*, i32** %c, align 8
tail call void @t3_check(i32* %a, i64 %b, i32* %0)
ret void
}
declare void @t3_check(i32* nocapture align 256, i64, i32* nocapture)
declare !callback !0 void @t3_callback_broker(i32* nocapture , i32* nocapture , void (i32*, i32*, ...)* nocapture, ...)
!0 = !{!1}
!1 = !{i64 2, i64 -1, i64 -1, i1 true}
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